Safety device for air-brakes.



PATENTED DEC. 25, 1906.

` J. JUDGE. SAFETY DEVICE EUR AIE BRAKES.

APPLICATION FILED AUG. 28, 1906.

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7TOHNEYS PATENTED DEC. 25, 1906.

J. JUDGE. SAFETY DEVICE FOR AIR BRAKES.

APPLIOATION FILED AUG. 28, 1906.

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A TTOHNEYS narran Srarasf Pa'iinrr onirica. JOSEPH JUDGE, or ArauNSYLVANIA.

SAFETY DEVICE FOR AIFF-BRAKES.

Specification of Letters Patent.

Patented. Dec. 25, 1906.

Application ma Angus: 28,1906. serai-N0. 332,335. l

y liable to become inoperative, and adapted to insure proper observance of a danger or 'other signal designed for the engineer of. a

train. This I accomplish by theineans illustrated in the drawings, .in which draw- .ings like characters of reference indicate like partsy throughout the views, and-1n which- Figure 1 is a side elevation of a device enibodyiiig my invention applied to the cab of an engine. Fig. 2 is a plan view, partly 4in section, taken on the line 2 2 of Fig. 1. Fig.

-3 is a sectional elevation of a swivel-valve connected' with the train air-pipe, shown in side elevation; and Fig-.4 is a vertical section taken on the line 4 4 of Figi.

As illustrated in the drawings, 1 represents a train air-pi e extending upward into the cab and p'rovii ed with an elbow 2, connected with a horizontal extension .1a ofthe train-pipe. The train-pipe isconnectcd by means of such extension with a swivel-valve, the lower portion 3 of which consists of a standard having a cylindrical hollow end.

, closed stem 3a extending upward therefrom and provided with alateral port 3b. Thel upper portion of the valve consists of a sleeve 4, which is rotatably mounted upon the stem 3a and provided -with an opening 4a and a lateral extension or nipple 4d, threaded interiorly to enga 4 of the upper portion ofthe valve is held in close engagement with the stem 3a of the lower portion ofthe valve by means 4of a washer 4b and set-screw 4c, secured ,to the closed upper end of the SleeveA 3a. The pipe.v

5 is threaded on its outer end, so as'to engage a threaded iiangef7l, formedon .a sleeve 7. The outer end of the sleeve 7 is threaded to' -encrage afgland 8 and is provided with an annular iiange 8a, adapted to bear against a ring` of packing 9, arranged within the gland between 'the iian e of such gland andoffset end 6a of a frangi le tube 6, which is secured e a corresponding eXteiioily-threaded en of apipe 5. The sleeve the cab ofthe engine.

- within the sleeve 7 and gland 8. Asiinilar ring of packing 9 is arranged between the offset end 6u of the tube 6 and the-Harige 7 u of the sleeve 7. By means of such construction a tight joint is niaintainedfbetween the pipe 5 and the frangible tube 6. An arm 10 is formed on o rsecured to the Sleeve4 of the upper portion of the valve, and a link 11 is pivotcd to the outer end of said arm by means of a pin 10a. The opposite end 'of saidlink is pivoted to a lever 12 by means of a-hinge-pin 11u. The lever 12 is rigidly -sesui'ed to a spindle 13, which is rotatably mounted in a vertical casing 16, secured to a bracket or shelf 19, attached to the cab and provided with a flange 16, adapted to bear against the upper surface of the shelf 19 and secured thereon against a rotary movement by means of screws 16C.I A pin 16d is se. cured to an oiiset arm 1Gb, formed on the u J- per en'd of the casing 16, and engages t ie outer end of a spring 1-5, the opposite end of which spring is secured to a pin 12, attached to the end of the lever 12. ,The spring norniallypresses the outer end of the lever 12 forward and the link 11 connected'therewitli, which in turn presses forward the outer end of the arm 10, attached to the casing of. the

upper portion of the valve, and holds the pipe,

5 and Tangible tube 6 outward from the cab and at a right angle thereto.

A lever 14 is rigidly .secured to the lower end of the spindle 13, so that by vmoving such lever horizontally the spring 15 is comressed, the outer end ofthe lever 12 moved backward, carrying with it the link 11 and outer end of the arm 10, so as to drawinward the pipe 5 4and frangible tube 6, -connected therewith, into the position indicated` by dotted lines in Fig. 2. A opening is made in the side of the cab to permit such inward movement of thepi e 5, The inward movement of sucli pipe' is iinited. by means of a stop 21, and a stop 22 limits the outward oi-' back-ward movement of said pipe; A

I`win\ ,"17 may be secured to t-he pipe5, so that y the Vmove-` the current of air. generated l ment of the train will aid in holding thc pipe '5 ina backward and outward position in case the spring shouldbecoine broken or in- By means of such construction operative. a constant communication between the train air-pi e 1. and the fraiigible t1ibe-6 is inain taine( while the tubeextends outward from This is accomplished IOO IOS

by means of the port 3b, formed :in the stem ever, Ivprefer to arrange said device on the i of a swivel-valve connected therewith, a pipe opening 4a of such sleeve out of alinement 'serving it and moving the frangible tube-6 l claim as new and desire to secure *bv Let- 3a of the valve, which registers with the opening 4, formed in the sleeve 'of 'the valve, when the frangible tube 6 extends in i such outward direction. By moving the lever 14 horizontally, however, the spring 15 compressed so as to draw backward ,the outer endof the lever 12 and the arm 10, secured to the casing 4, so as to bring the with the port 3b of the stem of the lower portion, and thereby close thepo'rt 3b of the valve. When, however, the frangible tube i 6 extends outward. frein the cab of the engine and is struck by any7 obstacle so as to fracture the'tube, the air is permitted to escape from the train air-pipe, thereby setting the air-brakes. `Arms 18 are preferably attached rigidly to thestandard of a semaphore-signal and are arranged in the path 'of travel of `the'irangible tube and unless such tubes are moved inward before approaching the arm of the semaphore-standard by'inoving horizontally by hand the lever Mythe' tube 6 will be fractured by the arm'of the semaphore-standard and set the air-brakes of the train. 'lf an engineer, therefore, passes a semaphore-signal without obout of" the way of the arm, the brakes are automatically applied and the train stopped. Instead of attaching such arms to the standards of a semaphore-signal the arms may be rigidly secured to standards placed along the line of the railroad at regular intervals of one or more milesl and arranged to extend in the path of travel of the tube 6, so as to stiopvthe train automatically if theA engineer should become disabled from any cause.v

In the drawings a device embodying .my 'invention is shown supported .upon a shelf secured to the side of the cab of an engine,

with the pipe 5 extending through an opening in said cab. ln most instances, howoutside of the top of the cab, with 4the handle 14 arranged within the cab, so as to be readily operated by the engineer.

Having thus described my invention, what lters Patent, is

1.= The combination'with a train airp1.pe,

connected with the swiveling portion of the the frangible tube in a predetermined posil tion, substantially as shown and described.

v 3. The combination with a train air-pipe, of' a swiveling valve connected therewith, comprising a hollow stem provided with a port and a sleeve journaled on said stem and provided with a hollow nipple having an' opening adapted to register with the port of -said stem, a pipe secured to said nipple, a

frangible tube secured vto said pipe, springactuated' mechanism adapted to keep the port of said stem in alinement withA 'Qh-eopening of said nipple, and a lever ada ted to con-v trol said mechanism, substantia y as shown and described. j

4. The combination witha train, air-pipe,

of'a swivelevalve connected therewith, a frangible tube connected with said valve, spring mechanism adapted to hold .saidV tube and j' normally in a-pre`determined position, sub-l stantially as shown and described. 'y 'A A y a train air-pipe, of a swivel-valveconnected therewith, a' fran. gible tube connected with said "valve, a

5. rThe combination with lspring mechanism adapted'to hold saidl tube .normally in a predetermined position, and a lever adapted to operatesaid valve, substantially as shown and described.

A 6. The combination with a train air-pipe, of a swivel-valve connected therewith, a frangible tube connected with said valve, and a wing connected with said frangible tube, substantially as shown and described.

In testimony whereof I vhave signed my' name to this specification in the presence of two subscribing witnesses. j c

1 lJOSEPH JUDGE. I Witnesses:

MICHAEL QUINN, JOHN FLEMING. 

